If I can make something or make do instead of buying something I will... So for stitch markers I was using sandwich bag ties believe it or not ( the only thing I could find at the time) but these are pretty annoying to use as they catch on the yarn when your trying to put them through the stitch. So I had a think about what else I could use. Extra bits of yarn work but I crochet very tightly when making amigurumi figures so I had to find a needle, thread a needle, use the needle to get the thread in the stitch and then tie the yarn in place.....effort. Oh and then try to untie the yarn after it's managed to tighten itself up!
I decided to try and make one out of craft wire. Be aware it's only a rough version.
I'm using it to make my second Dalek I find it really easy to use, a lot better than sandwich bag ties and spare yarn... And it hasn't fallen out whilst I've been crocheting yet.